Set viewUpdated=true for macOS scroll wheel, open vulkanExamples window in front of Xcode, accept mouse click-through on macOS

base/vulkanexamplebase.cpp

@@ -1549,6 +1549,8 @@ dispatch_group_t concurrentGroup;
 
 - (void)applicationDidFinishLaunching:(NSNotification *)aNotification
 {
+	[NSApp activateIgnoringOtherApps:YES];		// SRS - Make sure app window launches in front of Xcode window
+	
 	concurrentGroup = dispatch_group_create();
 	dispatch_queue_t concurrentQueue = dispatch_get_global_queue(QOS_CLASS_USER_INTERACTIVE, 0);
 	dispatch_group_async(concurrentGroup, concurrentQueue, ^{
@@ -1628,6 +1630,11 @@ static CVReturn displayLinkOutputCallback(CVDisplayLinkRef displayLink, const CV
 	return YES;
 }
 
+- (BOOL)acceptsFirstMouse:(NSEvent *)event
+{
+	return YES;
+}
+
 - (void)keyDown:(NSEvent*)event
 {
 	switch (event.keyCode)
@@ -1751,6 +1758,7 @@ static CVReturn displayLinkOutputCallback(CVDisplayLinkRef displayLink, const CV
 	short wheelDelta = [event deltaY];
 	vulkanExample->camera.translate(glm::vec3(0.0f, 0.0f,
 		-(float)wheelDelta * 0.05f * vulkanExample->camera.movementSpeed));
+	vulkanExample->viewUpdated = true;
 }
 
 // SRS - Window resizing already handled by windowResize() in VulkanExampleBase::submitFrame()

base/vulkanexamplebase.h

@@ -96,7 +96,6 @@ class VulkanExampleBase
 {
 private:
 	std::string getWindowTitle();
-	bool viewUpdated = false;
 	uint32_t destWidth;
 	uint32_t destHeight;
 	bool resizing = false;
@@ -177,6 +176,7 @@ protected:
 public:
 	bool prepared = false;
 	bool resized = false;
+	bool viewUpdated = false;
 	uint32_t width = 1280;
 	uint32_t height = 720;
 

xcode/MVKExample.cpp

@@ -107,6 +107,7 @@ void MVKExample::mouseDragged(double x, double y) {
 
 void MVKExample::scrollWheel(short wheelDelta) {
     _vulkanExample->camera.translate(glm::vec3(0.0f, 0.0f, wheelDelta * 0.05f * _vulkanExample->camera.movementSpeed));
+	_vulkanExample->viewUpdated = true;
 }
 
 void MVKExample::fullScreen(bool fullscreen) {